ELABOUDI, I.; LAZARE, Sylvain; BELIN, C.; TALAGA, David; LABRUGÈRE, Christine

doi:10.1007/s00339-008-4567-2

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ELABOUDI, I.
Institut des Sciences Moléculaires [ISM]

LAZARE, Sylvain
Institut des Sciences Moléculaires [ISM]

BELIN, C.
Institut des Sciences Moléculaires [ISM]

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Applied physics. A, Materials science & processing. 2008, vol. 92, n° 4, p. 743-748

Springer Verlag

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In this paper, we study the photoablation kinetic of poly (ethylene terephthalate) (PET), polycarbonate (PC), polyimide (PI) and polystyrene (PS) in both air and water. Compared to the results obtained in air, we highlight the decrease of the ablation threshold (AT) of polyesters in contact with water as a function of polymer chemical structure. In order to check the expected hydrolytic reaction of polyesters near the ablation threshold, the chemical modification of the polymer surfaces, as well the composition of the ablation products, were investigated after irradiation near the fluence of ablation threshold in air (air-F t ) by X-ray photoelectron spectroscopy (XPS) and confocal Raman microspectroscopy. The morphology of polymers obtained by underwater irradiation and near the air-F t was also examined using scanning electron microscopy (SEM). To understand the process and its dynamics in contact with water, we consider the model of temperature at the polymer-water interface based on the semi-analytical solution of the transit heat-diffusion equation.< Leer menos

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Photoablation

Kinetic

Polymers

Raman spectroscopy

X-ray photoelectron spectroscopy

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Underwater excimer laser ablation of polymers

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